>> "........ if there's two independent
>>sources of power (spelled batteries)......"
>
> Possibly, under the FARs.
> JAR-E is more relaxed and only calls for two independent sources of
> electrical power; there is nothing that explicitly prohibits one of these
> being the engine-driven generator, so long as the electrical system can
> allow each to operate independently of the other
>
> Duncan McF.
JAR-E would then be loose! In again reading our old and new regs, I see
now that the artful change in wording is now such that the 914 probably
can't be certified at all either. It may be significant in that the
only such approval here has been on a motorglider.
My only question is if the alternator or regulator fails, AND there's
the smell of smoke and abnormal readings on amps/volts, one should
disconnect the battery at the battery relay, not just disconnect the
alternator and wait to see if the smoke goes away. What then will cause
the engine to continue to run? If one doesn't have a relay, and the
smoke is electrical but no circuit protector pops, there's no way to
stop the smoke without waiting for the battery to discharge or a
necessary circuit to go open through heating. Then the engine quits.
Fred F.
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